  *{margin: 0;
        padding: 0;
        box-sizing: border-box;}
    body{
        width: 100%;
        height: 700px;
        background-size:cover;
        popsition:relative;
    }
    li{
        list-style: none;
    }
    a{
        text-decoration: none;
    }
    .left{
		width:200px;
    	height:800px;
    	color:white;
    	background-color:#AAA;
    	text-align:center;
    	position:fixed;
    }
    .left img{
    	margin-top:20px;
		width:150px;
    	height:40px;
    }
    .left ul{
    	height:300px;
    	margin-top:60px;
    }
	.left ul img{
		width:40px;
		height:40px;
		line-height:30px;
    }
	.left ul li{
		line-height:20px;
		margin:10px auto;
    }
	.left ul li a{
		color:white;
    }
	.left ul li a:hover{
		color:skyblue;
    }
    .left ul li:hover{
		background-color:rgba(0,0,0,.1);
    	border-radius:5px 500px 500px 5px;
    	font-weight:bold;
    }
	.right {
    	float:right;
	    width:1355px;
    	height:800px;
		z-index:1;
    }
	.right h3{
		float:right;
		width:1336px;
    	height:40px;
    	background-color:rgba(0,0,0,0.2);
		line-height:40px;
		text-align:right;
    }


    